From ab19b0ecfddf94ae2053b973cea5a58c8dac0363 Mon Sep 17 00:00:00 2001
From: pbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Wed, 2 Jul 2008 16:44:09 +0000
Subject: ARMv7-M interrupt stack alignment fix.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4823 c046a42c-6fe2-441c-8c8c-71466251a162
---
 target-arm/helper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target-arm/helper.c b/target-arm/helper.c
index 8e8543525..32c2c2e28 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -674,7 +674,7 @@ void do_interrupt_v7m(CPUARMState *env)
     /* ??? Should only do this if Configuration Control Register
        STACKALIGN bit is set.  */
     if (env->regs[13] & 4) {
-        env->regs[13] += 4;
+        env->regs[13] -= 4;
         xpsr |= 0x200;
     }
     /* Switch to the handler mode.  */
-- 
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